Fox ESS vs GoodWe Batteries 2026

Two of the most installed battery brands in Victoria, compared on capacity, warranty and real features — plus exactly what the federal battery rebate is worth right now.

With solar feed-in tariffs falling and electricity prices climbing, adding a battery is one of the highest-impact upgrades a Melbourne home can make. Fox ESS and GoodWe are two of the most commonly installed brands across Victoria, and both are strong, safe choices — but they’re built around different priorities. Here’s how they actually compare.

Time-sensitive

The federal Cheaper Home Batteries Program rebate steps down again on 1 January 2027, dropping from the current May–December 2026 rate to a lower rate for the first half of 2027. Since the rebate is locked in by installation date, installing before the end of the year secures the current, higher discount.

Source: Cheaper Home Batteries Program rate schedule and STC factor step-downs — Department of Climate Change, Energy, the Environment and Water (DCCEEW). dcceew.gov.au/energy/programs/cheaper-home-batteries

Fox ESS vs GoodWe at a glance

Feature	Fox ESS (EQ4800 / CQ6)	GoodWe (Lynx F G2)
Battery chemistry	Lithium Iron Phosphate (LFP)	Lithium Iron Phosphate (LFP)
Module size	4.66kWh (EQ4800) / ~5.98kWh (CQ6)	3.2kWh
Capacity range (per stack)	9.32–41.94kWh (EQ4800), 11.96–83.72kWh (CQ6)	9.6–28.8kWh
Max expandable capacity	Up to 83.72kWh per CQ6 stack	Up to 230kWh across 8 parallel towers
Standard warranty	10 years (EQ4800), 12 years (CQ6) — 70% capacity retention	10 years product + 10 years performance — 70% capacity at year 10
Inverter compatibility	Fox ESS hybrid inverters	GoodWe EH, ET and GEH series inverters only
Standout feature	CQ6 includes built-in fire suppression and over 95% round-trip efficiency	Finest capacity steps in its class, IP55-rated for flexible indoor/outdoor install
Best suited to	Larger homes, EV owners, high-usage households wanting maximum headroom	Homes already on, or planning, a GoodWe hybrid inverter ecosystem

Specifications sourced from Fox ESS and GoodWe Australian product documentation and battery warranty policies current as of 2026. Confirm the exact model, capacity and current warranty terms with your installer, as brands update ranges periodically.

Fox ESS: EQ4800 and CQ6

Fox ESS’s EQ4800 remains the proven, budget-friendly workhorse — built from 4.66kWh modules stacking up to 41.94kWh, backed by a 10-year warranty guaranteeing at least 70% capacity retention. The newer CQ6 is the step-up flagship: bigger ~5.98kWh modules, expansion up to 83.72kWh per stack, a longer 12-year warranty, built-in fire suppression, and round-trip efficiency above 95%. Both are designed to pair with Fox ESS’s own hybrid inverter range.

GoodWe: Lynx F G2 Series

GoodWe’s Lynx F G2 uses a modular 3.2kWh-per-unit design, giving the finest capacity steps of any battery in this comparison — 9.6kWh, 12.8kWh, 16.0kWh, 19.2kWh, 22.4kWh, 25.6kWh or 28.8kWh per tower, with up to eight towers linkable for commercial-scale installs. It carries a 10-year product and performance warranty, guaranteeing at least 70% usable energy retention at year ten. The key caveat: the Lynx F G2’s warranty and full functionality require a compatible GoodWe EH, ET or GEH inverter — it isn’t designed as a universal, brand-agnostic add-on.

What you can actually claim: the federal battery rebate

Victoria no longer runs its own battery rebate — Solar Victoria’s interest-free battery loan closed to new applications in May 2025 and has not been replaced with a state incentive. The only battery support available to Victorian households in 2026 is the federal Cheaper Home Batteries Program, which applies nationally and is worth roughly 30% off the upfront cost for most households.

Usable capacity band	Support level (from 1 May 2026)
First 0–14kWh	Full rate — roughly $250–$270 per kWh depending on the live STC price
14–28kWh	60% of the full rate
28–50kWh	15% of the full rate

In practical terms, a mid-size 14kWh system currently attracts a discount in the order of $3,500, while a 21kWh system (a common single-home size once capacity above 14kWh is included) sits closer to $4,500–$4,600. These figures move with the live STC market price, so treat them as indicative rather than a quote.

Source: Cheaper Home Batteries Program eligibility, discount structure and 1 May 2026 changes — DCCEEW. dcceew.gov.au/energy/programs/cheaper-home-batteries

Eligibility essentials

Battery must be paired with a new or existing solar PV system — stand-alone batteries don’t qualify
System size must be between 5kWh and 100kWh usable capacity
Must be installed by a CEC-accredited installer and registered with the manufacturer
Applies nationally — there is no separate Victorian top-up in 2026
If you’re also installing solar panels for the first time, the separate Solar Victoria Solar Homes rebate (up to $1,400) can apply to the panels, subject to a combined household income cap of $150,000 introduced from 1 July 2026

So which is “best”?

Choose Fox ESS if you want the widest capacity range in one brand (especially the CQ6’s extra headroom and fire suppression), or you’re installing with a Fox ESS hybrid inverter as part of a new system.
Choose GoodWe if you already have, or are installing, a GoodWe hybrid inverter, or you want the finest capacity increments to match your system size precisely.

This is general guidance only. The right battery depends on your existing inverter (if any), household usage, available installation space and budget — a proper site assessment will confirm the best fit.

Frequently Asked Questions

Is Fox ESS or GoodWe better for a Melbourne home?

Both use the same safe LiFePO4 chemistry and deliver similar performance. Fox ESS’s CQ6 suits homes wanting maximum capacity and the longest warranty, while GoodWe’s Lynx F G2 suits homes already running, or planning to run, a GoodWe hybrid inverter.

Is there still a Victorian state battery rebate in 2026?

No. Solar Victoria’s interest-free battery loan closed to new applications in May 2025 and has not been replaced with a state rebate. The only battery incentive available to Victorian households in 2026 is the federal Cheaper Home Batteries Program.

How much does the federal battery rebate reduce the cost of a Fox ESS or GoodWe battery?

The Cheaper Home Batteries Program currently discounts the first 14kWh of usable capacity at the full rate, roughly $250–$270 per kWh depending on the live STC price, then 60% of that rate for the next 14kWh, and 15% beyond that, up to a 50kWh cap.

Not sure whether Fox ESS or GoodWe suits your home?

Climate Green installs both brands and will confirm your federal rebate eligibility and the right system size for your household.Contact Us

Fox ESS vs GoodWe Batteries: Which Is Best for Your Melbourne Home?